Four Seasons 85931 Engine Coolant Thermostat Housing

Overview of Four Seasons Thermostat Housing 85931

The Four Seasons Thermostat Housing 85931 is designed for reliable engine coolant management in select Volkswagen models. This engine coolant thermostat housing is constructed from durable black plastic and is engineered to meet or exceed OEM specifications, ensuring proper fit and function for your vehicle.

Key Features of the Four Seasons Thermostat Housing

• Material: High-quality black plastic for corrosion resistance and durability
• Outlet port diameter: 32.12 mm for precise coolant flow
• Inlet port diameter: 1.500 inches to match OEM dimensions
• Flange thickness: 0.400 inches for secure mounting
• Bolt hole center-to-center distance: 3.03 inches for accurate fitment
• Includes gasket or seal for leak-free installation
• Overall height: 1.770 inches
• Style: Without thermostat, designed to house the thermostat separately
• Non-symmetrical base design for exact OEM replacement
• Thermostat not included

Detailed Description of the Thermostat Housing

This Four Seasons Thermostat Housing 85931 is part of the Thermostat Housing product line, which focuses on providing precise engine coolant components that maintain optimal engine temperature. The housing is crafted from durable plastic, offering resistance to corrosion and heat, which is critical for the cooling system's longevity. Its design includes specific inlet and outlet port diameters to ensure proper coolant flow and compatibility with the cooling system of Volkswagen vehicles such as the Corrado, EuroVan, Golf, Jetta, and Passat. The included gasket or seal helps prevent leaks, while the flange thickness and bolt hole spacing guarantee a secure and accurate fit.

Compatible Vehicles and Common Applications

This thermostat housing is compatible with the following Volkswagen models:

• Volkswagen Corrado
• Volkswagen EuroVan
• Volkswagen Golf
• Volkswagen Jetta
• Volkswagen Passat

It is designed to replace the original thermostat housing without the thermostat included, making it suitable for repairs or upgrades where the thermostat is serviced separately.

Common Issues Addressed by This Thermostat Housing

• Coolant leaks due to cracked or damaged housing
• Overheating caused by faulty or warped thermostat housing
• Corrosion and wear from prolonged exposure to coolant and heat
• Improper coolant flow resulting from damaged inlet or outlet ports
• Loose mounting or gasket failure leading to coolant loss

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Remove the old thermostat housing carefully to prevent damage to surrounding components
• Replace the gasket or seal included with the new housing to ensure a leak-free fit
• Verify bolt hole alignment using the 3.03-inch center-to-center measurement
• Do not install the thermostat housing with the thermostat included, as this part is designed without it

Quality Assurance and Warranty

The Four Seasons Thermostat Housing 85931 meets or exceeds OEM standards, providing reliable performance and durability. The product undergoes rigorous quality control to ensure proper fit and function. Warranty details are provided by Four Seasons and typically cover defects in material and workmanship under normal use.